continual, continuous, successive, constant, persistent
这些形容词均有连续的、不断的之意。
continual : 强调重复或持续发生,但连续之间允许有间断。
I am tired of this continual rain.(不停的下雨使我厌倦。)
continuous : 语意最强,强调在时间和空间上没有间断。
The brain needs a continuous supply of blood.(大脑需要不断供给血液。)
successive : 强调事物一个接一个地发生,无间断。
He won three successive matches.(他连胜三场比赛。)
constant : 多指习惯性的重复和不变的持续。
In history, change is constant.(在历史上, 变化是不断的。)
persistent : 普通用词,可指不懈的努力,也可指任何连续不断或重复出现的事物。
Albert had a persistent headache that lasted for three days.(艾伯特连续头痛了三天。)
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